International Journal of Image, Graphics and Signal Processing(IJIGSP)
ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)
Published By: MECS Press
IJIGSP Vol.7, No.1, Dec. 2014
Adaptive Modulation and Coding with Channel State Information in OFDM for WiMAX
Full Text (PDF, 759KB), PP.61-69
WiMAX is a broadband wireless communication system which provides fixed as well as mobility services. The mobile-WiMAX offers a special feature that has adopted an adaptive modulation and coding (AMC) in OFDM to provide higher data rates and error free transmission. AMC technique employs the channel state information (CSI) to efficiently utilize the channel and maximize the throughput with better spectral efficiency. In this paper, LSE, MMSE, LMMSE, Low rank (Lr)-LMMSE channel estimators are integrated with the physical layer. The performance of estimation algorithms is analyzed in terms of BER, SNR, MSE and throughput. Simulation results proved that increment in modulation scheme size causes to improvement in throughput along with BER value. There is a trade-off among modulation size, BER value and throughput.
Cite This Paper
B. Siva Kumar Reddy, B. Lakshmi,"Adaptive Modulation and Coding with Channel State Information in OFDM for WiMAX", IJIGSP, vol.7, no.1, pp. 61-69, 2015.DOI: 10.5815/ijigsp.2015.01.08
Andrews, Jeffrey G and Ghosh, Arunabha and Muhamed, Rias, Fundamentals of WiMAX: "understanding broadbadwireless networking", Prentice Hall PTR, 2007.
Kyro, Mikko, et al, "Measurement based path loss and delay spread modeling in hospital environments at 60 GHz", IEEE Transactions on Wireless Communications, vol. 10, no. 8, pp. 2423-2427, 2011.
Tiwary, Vikash Kumar, Subham Agarwal, and Samarendra Nath Sur. "Performance Analysis of Non-Linear Equalizer in MIMO System for Vehicular Channel.", International Journal of Image, Graphics and Signal Processing (IJIGSP), vol. 5, no. 11, 2013.
Nee, Richard van and Prasad, Ramjee, "OFDM for wirelessmultimedia communications", Artech House, 2000.
Rabiei, Payam, Won Namgoong, and Naofal Al-Dhahir, "A non-iterative technique for phase noise ICI mitigation in packet-based OFDM systems", IEEE Transactions on Signal Processing, vol. 58, no. 11, pp. 5945-5950, 2010.
Pan, Yuwen, Andrew Nix, and Mark Beach, "Distributed resource allocation for OFDMA-based relay networks", IEEE Transactions on Vehicular Technology, vol. 60, no. 3, pp. 919-931, 2011.
Fantacci, Romano, et al., "Adaptive modulation and coding techniques for OFDMA systems", IEEE Transactions on Wireless Communications, vol. 8, no.9, pp. 4876-4883, 2009.
Kildal, P-S., et al., "Threshold receiver model for throughput of wireless devices with MIMO and frequency diversity measured in reverberation chamber," IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 1201-1204, 2011.
Xiong, Cong, et al., "Energy-and spectral-efficiency tradeoff in downlink OFDMA networks", IEEE Transactions on Wireless Communications, vol. 10, no.11, pp. 3874-3886, 2011.
Chae, Chan-Byoung, et al., "Adaptive MIMO transmission techniques for broadband wireless communication systems [Topics in Wireless Communications]", IEEE Communications Magazine, vol. 48, no. 5, pp. 112-118, 2010.
Shen, Godwin, et al., "Edge-adaptive transforms for efficient depth map coding", IEEE Picture Coding Symposium (PCS), 2010.
Si, Zhongwei, Ragnar Thobaben, and Mikael Skoglund., "Rate-compatible LDPC convolutional codes achieving the capacity of the BEC", IEEE Transactions on Information Theory, vol. 58, no. 6, pp. 4021-4029, 2012.
Saleem, Saqib., "Performance and Complexity Comparison of Channel Estimation Algorithms for OFDM System", International Journal of Electrical & Computer Sciences, vol. 11, no. 2, 2011.
Upadhyay, Navneet, and Abhijit Karmakar, "Spectral Subtractive-Type Algorithms for Enhancement of Noisy Speech: An Integrative Review." International Journal of Image, Graphics and Signal Processing (IJIGSP), vol. 5, no. 11, 2013.
Ravindran, Niranjay, and Nihar Jindal., "Multi-user diversity vs. accurate channel state information in MIMO downlink channels", IEEE Transactions on Wireless Communications, vol. 11, no. 9, pp. 3037-3046, 2012.